Stop for preventing rebound of carrier rods of full-fashioned-knitting machines



Oct. 22, '1929. K, O E 1,732,751

TOP FOR PREVENTING REBOUND CARR RODS OF FULL FASHIONED KNIIT MAC ES Filed Jan. 6, 1928 TB l l :i! L "I. 1 M I 0 4 INVENTOR ATTORNEY Pateiited Oct. 22, 1929 UNITED STATES PATENT OFFICE x KENNETH HOWIE, OF NORRISTOWN, PENNSYLVANIA, ASSIGNOR TO WILDMAN MFG. (30., OF NOBRISTOWN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA STOPFOR PREVENTING REBOUND OF CARRIER RODS F FULL-FASHIONED-KNITTING" MAGHINES Application filed January e; 1928. Serial No. 244,975.

This invention relates to a stop for a carrier bar, for instance, a thread guide carrier bar for a full fashioned knitting machine.

An object of the invention is to prevent rebound of the bar at the end of its stroke.

' Other objects will appear hereinafter,

from the accompanying description, drawing and claims. 4

The invention consists in the features, combination and arrangement of parts hereinafter described and particularly pointed out in the claims.

In the accompanying drawings Figure l is a view of my catch device for the carrier rod shown in position relative to.

said carrier rod.

Fig. 2 is an end view of a portion of a full fashioned knitting machine showing the catch devices of my invention mounted one on each of the carrier bars.

' Referring to the drawings, C represents the yarn carrier rod mounted in the machine in the usual manner, and adapted to be stopped at the end of its stroke by the usual adjustable abutment F. The carrier rod C is provided at itsupper edge adjacent its end or at" other locations with an insert member G of hardened steel, held to the carrier rod by screws H. The wedge engage and bear upon the top of the insert member G upon there being any tendency torebound after the carrier rod has been stopped by the abutment F.

The roller B upon rebound tendency of the carrier rod C after striking the abutment F, is in contact with the insert member G of rod C and also with the fixed hardened steel incline member K and will be frictionally wedged between K and C, by reason of their angular relation, thus stopping rebound movement of rod C.

The catch device D comprises the hardened steel incline member K adapted to be fixed in any suitable manner to the machine, the member K having a depending lug L provided with a bore M for slidably receiving the stem N at one end of which the roller B is mounted. The stem N is provided at its opposite 5 end with an annular flange 0 between which roller B of the catch device D is adapted to roller B outof Wedging contact with incline K.

I A similar catch device may be provided at the opposite end of the carrier barand suitable actuating means and timing regulation provided for controlling the release lever A. The lever A is pivotally mounted at S to any suitable part of the machine and may be connected to a cam on the main cam shaft of the knitting machine, or other suitable actuating means may be provided. The spring E tends to bring the wedge roller into contact with incline K. while in contact with the insert G of rod C and when the lever A is retracted I from throw-out position by suitable timing or cam-mechanism, the catch will be restored too erative position to prevent rebound.

odificationssuch as the substitution of an ordinary wedge for the roller B is contemplated by the present invention and is within the scope thereof.

It will be understood that as in usual prac-- tics in full fashioned knitting machines of the Cotton type, the carrier bars are reciprocated lengthwise of theinachine by so called frictions consisting of driving members having frictional engagement with the carrier bars. Unless means are provided to prevent rebound of the carrier bars when they strike their stops, said bars will become displaced relative to the frictions and it is to avoid this action that the above described arresting device is provided.

The wedge B is in operative position with relation to rod C during the entire inward travel of the yarn carrier rod C.

I claim:

1. In a full fashioned knitting machine.- a friction stop for preventing rebound of the yarn carrier rod at the end of its stroke, said stop comprising an incline member having an inclined lower surface disposed at an face and the top rebound of the carrier rod.

angle to the am carrier rod, a wedge movmounte ad acent said lnclme member bl and adapted to engage both the inclined surthe carrier rod to prevent 2. In a full fashioned knitting machine, afriction stop for preventing rebound of the yarn carrier rod at the end of its stroke, said stop comprising an incline member having an inclined lower surface disposed in angular relation to the top of the yarn carrier rod, and a wedge adapted to contact with the inclined surface and the top of the carrier rod to prevent rebound of the carrier rod.

3. In a full fashioned knitting machine, a

friction stop for preventing rebound of the yarn carrier rod at the end of its stroke, said stop comprising an incline member having an inclined lower surface disposed in angular relation to the top of the yarn carrier rod, and a wedge adapted to contact with the inclined surface and the top of the carrier rod to prevent rebound of the carrier rod and means for actuating said wedge.

4. Apparatus according to claim 3 in which said wedge actuating means includes a lever arm pivotally mounted to the knitting machine and operated by suitable mechanism to push said wedge out of contact with said inclined surface, and a spring connected with said wedge to urge it into wedged position between the surfaces. 4

5. In a full fashioned knitting machine, a friction stop for preventing rebound of the yarn carrier rod at the end of its stroke, said stop comprising an incline member having an inclined lower surface disposed at an angle to the top of the yarn carrier rod, a wedge, a shaft connected'to said wedge, said incline member having a bore for slidably receiving said wedge shaft, means adapted to engage said wedge shaft to move the wedge out of wedged position between the inclined surface and the top of the carrier rod, and spring means engaging the wedge shaft for urging the wedge into wedged position.

6. Apparatus according to claim 5 in which said means for moving the wedge out of wedged position, comprises an arm pivotally mounted on the knitting machine and adapted to be swung against said wedge shaft to' move the same 7. Apparatus according to claim 5 in which said wedge comprises a roller mounted on the end of the wedge shaft and adapted to roll into and out of wedged position upon the top of the carrier bar.

8. Apparatus according to claim 5 in which said inclined surface and the wedge engaging surface of the carrier rod are of hardened steel.

' x 9. In a full fashioned knitting fnachine, a

friction box drive for preventing rebound of the carrier rod and displacement relative to the friction driving mechanism.

10. In a full fashioned knitting machine, a friction driven yarn carrier rod and stop means includin friction means independent Of the friction box drive for preventing rebound of the carrier rod and preventing displacement relative to the friction driving mechanism.

11. Apparatus according to claim 10 in which said friction means comprises a wedge for frictionally preventing rebound of the yarn carrier rod.

12. In connection with the rebound preventing means of claim 9, means for automatically releasing the same. 

